Dumping mine-car.



C. LAYTON.

DUMPING MINE GARK APPLIUATloN FILED FBB.24,1914.

19124, 147 Patented Jan. 5, 1915.

`rHE NORRIS PETERS Co.. PHOTO UTI-1.o.,WAS/INQI'I'JN4 D Cv CHARLESLAYTON, 0F MOUNT PLEASANT, PENNSYLVANIA.

DUMPING MINE-CAR.

Specification of Letters Patent.

Patented Jan. 5, 1915.

Application filed February 24, 1914. i Serial No. 820,747.

To all 'whom t may concern Be it known that l, CHARLES LAYToy, a citizenof the United States, residing at Mount Pleasant, in the county oflifestmorelandand State of Pennsylvania7 have invented certain new anduseful Improvements in Dumping Mine-Cars, of which the following is aspecification.

My invention appertains to means for facilitating the automatic dumpingof mining cars.l

ln carrying out this invention I contemplate the provision on the bodyof a mine or similar car of mechanism adapted to be actuated by anobstacle in the path of movement of the car to release certain lockingmeans by which the dumping door of the car is normally maintained in aclosed position.

l/Vhile the invention is particularly' adapted for use in connectionwith mining cars, it will be evident on reference to the followingdescription that other types of cars. or dumping vehicles even, whereina dumping door is employed may have the invention applied thereto withresultant advanta e.

lVith the above and other objects in view, this invention consists inthe construction, combination and arrangement of parts all ashereinafter more fully described, claimed and illustrated in theaccompanying drawings, wherein:

Figure l is a side elevation of a mining car showing the preferredembodiment of the invention. Fig. 2 is a bottom plan view. Fig. 3 is asection taken about on the line 3-8 of Fig. 1,looking forwardly. Fig. 4is a diagrammatic view showing more clearly the manner in which the caris dumped by engagement of an obstacle with the shoe, said obstaclebeing preferably the horn of a dumping rail.

Throughout the following detail description, and on the several figuresof the drawings similar parts are referred to by like referencecharacters.

The car A illustrated in the drawings may be of any conventional typehaving at least one end thereof the end gate or dumping door B. The doorB swings at its upper end upon a cross bar l and any suitable means maybe provided intermediate the parts B and 1 permitting outward swingingof the door at the lower portion in the action of dumping the contentsof the car body. The car A has the usual trucks and supporting wheels C.The door B is normally held in its closed position by means of a lockingbolt 2, said bolt being slidable vertically and loosely through anopening in the bottom of the car A. At its lower end the bolt Q ispivotally connected as at 3 with the laterallyand inwardly extending arm4 of a rock shaft 5 arranged beneath the bottom of the car adjacent tothe front end of the latter. The shaft 5 is supported in suitablebearings 6 bolted or otherwise fastened to the car bottom. A coil spring7 encircles the rock shaft being attached thereto at one end and beinganchored at the other end to the car. The normal tendency of the spring7 is to force the arm 4 upward against the bottom of the car and holdthe bolt Q projecting into operative engagement with the outer side ofthe door B. At its rear end the shaft 5 carries a vertical arm 8detachably secured at its lower end to the shaft so that the arm may beremoved for the purpose of arranging the spring 7 on, or detaching saidspring from the shaft 5. On one side of the car A is mounted a shoe 9secured at its front end to the car and bearing intermediate its endsagainst the arm 8 at the outer side of the latter.

The arm 8 is normally held in a position inclining vertically andoutwardly from the car, owing to the action of the spring 7 on the shaft5, and thus the rear end of the shoe 9 by its engagement with the arm 8is likewise held in a position inclining outwardly and rearwardly fromthe car. A guide member l0 projects laterally and inwardly from the shoe9 and extends through a keeper l1 attached to the bottom of the car. Thepurpose of the guide member 10 is to hold the shoe 9 in proper positionin relation to the arm 8 preventing sagging tendencies of the shoe whichis movably connected, of course. at its front end with the car.

Describing now the operation of the invention, it will be apparent thatas the car A moves forwardly the mechanism for controlling the dumpingof the door B is so arranged as to permit an obstacle in the path of theshoe 9 to strike said shoe and force the same inwardly. When the shoe isthus operated its inward movement will be imparted to the arm 8 therebyrocking the shaft 5 and forcing the arm 4 downward. This movement of thearm 4 withdraws the bolt l from its engagement With the door B and saiddoor is thenY free to swing open and discharge the contents of the carin an ob' vious manner.

The guide member of the shoe 9 may be formed integral with said shoe orit may be a separate member as desired. Where the shoe 9 is made,however, of a piece of heavy metal, the member 10 will preferably be aninwardly bent etXension of said metal twisted into a plane at avrightangle to that of the shoe lso as to slide freely through the keeper 11.Theobstacle by which the shoe 9 is operable is not illustrated 'but maycomprise a standard arm or other projecting part located at a side ofthe track over which the car A travels and capable of striking the shoeduring the progress of the car.

' It is contemplated that the dumping car to which the invention isapplied shall be of the type adapted to tilt on the dumping railsordinarily provided at mine dumps, one of the horns or curved ends ofthe rails being adapted to engage the shoe 9 and force the same inwardto release the bolt 2, just as the car is tilted. In Fig. 4 adiagrammatic View of the vdumping of the car Copies of this patent maybe obtained for he cents each, by addressing the ommisslonevr o1-Pampering.

jecting from the rock shaft,` a spring enoirv cling the rook shaft andholding the last mentioned arm in spaced relation to the car andmaintaining the locking bolt in engagement with the door, a shoe movablysecured to a side of the car and engaged by the last-` mentioned arm, aguide member projecting from the shoe, and guiding means on the carcooperating with said guide member. Y

In testimony whereof lI lafliX my signature in presence of twowitnesses.

CHARLES LAYTQN.

Witnesses l NORMAN HAYns, C, 'Zwemme- Washington, Gf

